23420124 has 96 divisors (see below), whose sum is σ = 74762240. Its totient is φ = 6174144.

The previous prime is 23420123. The next prime is 23420167. The reversal of 23420124 is 42102432.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23420097 and 23420106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8637 + ... + 11019.

Almost surely, 2^23420124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23420124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37381120).

23420124 is an abundant number, since it is smaller than the sum of its proper divisors (51342116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23420124 is a wasteful number, since it uses less digits than its factorization.

23420124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416 (or 2408 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 23420124 is about 4839.4342644570. The cubic root of 23420124 is about 286.1078211817.

Adding to 23420124 its reverse (42102432), we get a palindrome (65522556).

The spelling of 23420124 in words is "twenty-three million, four hundred twenty thousand, one hundred twenty-four".